I use the 3 weight more, because I like the weight better.....It doesn't feel like I'm casting with a telephone pole!!
By this are you referring to the physical weight or the rods action?
I plan on going on a trip to Montana and Colorado next summer and I am looking for a versatile rod I can still make my go-to rod here in WV.
Satisfactory comprimises can be tough to achieve. Target your purchase towards the water you'll spend most of your time on.
Look at water size, fish size, and average fly size for help.
good luck...... SG